A coating machine stirring paddle with low stirring equivalent and its operation process

Abstract

The present invention discloses a coating machine stirring paddle with low stirring equivalent, comprising a conical barrel and a drum, the conical barrel being fixed at both ends of the drum, a drum mesh plate being fixed on the inner side wall of the drum, at least two groups of main stirring paddle assemblies being evenly arranged on the drum mesh plate, the main stirring paddle assembly comprising a first main stirring paddle and a second main stirring paddle symmetrically arranged with respect to the central axis of the drum mesh plate, the first main stirring paddle and the second main stirring paddle being symmetrically arranged in an eight-shaped shape, a plurality of first auxiliary stirring paddles being arranged on the drum mesh plate in parallel with the first main stirring paddle, and the plurality of first auxiliary stirring paddles and second auxiliary stirring paddles being symmetrically arranged in an eight-shaped shape, the special stirring paddle layout structure enables the materials to be stirred and mixed more evenly in the drum mesh plate, and at the same time, the height of the main stirring paddle is set to be slightly smaller than the height of the tablet bed formed by the minimum loading amount of the materials in the drum mesh plate, so that effective mixing and stirring can still be guaranteed when the material loading amount in the drum mesh plate is at the minimum, thereby improving practicality.

Description

Technical Field

[0001] The invention relates to the field of stirring paddle devices, in particular to a coating machine stirring paddle with low stirring equivalent and an operation process thereof. Background Art

[0002] The coating machine is mainly used in the production of sugar coating for pills and tablets in the pharmaceutical industry. It can also be used for rolling, mixing and polishing spherical or granular materials in the food, light industry and chemical industry. The pot rotates clockwise, causing the sugar-coated tablets to roll, slide, and grind in the pot. Sugar-coating powder is sprinkled in manually to make it evenly distributed on all the plain tablets. The electric blower that comes with it has an air outlet pipe that extends into the pot for heating. At the same time, the blower blows hot air into the inner layer of the pot to remove moisture from the surface of the tablets, thereby obtaining solid sugar-coated tablets.

[0003] The drum is a very important component of the coating machine. The drum generally includes a drum mesh plate, and a number of stirring paddles are provided on the inner wall of the drum mesh plate. The arrangement layout structure of the stirring paddles on the drum mesh plate in the prior art has the following disadvantages: when the loading amount of the material in the drum is the lowest, the stirring paddles cannot meet the requirements for material mixing and stirring. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a coating machine stirring paddle with a low stirring equivalent and its operating process. By arranging multiple groups of first main stirring paddles and second main stirring paddles symmetrically arranged in an eight-shaped shape on the inner wall of the drum mesh plate, and then combining several first auxiliary stirring paddles and second auxiliary stirring paddles also symmetrically arranged in an eight-shaped shape, the special stirring paddle layout structure makes the material stirred and mixed more evenly in the drum mesh plate. At the same time, the height of the main stirring paddle is set to be slightly smaller than the tablet bed height formed by the minimum loading amount of the material in the drum mesh plate, so that effective mixing and stirring can still be guaranteed when the material loading amount in the drum mesh plate is at the lowest, and the practicality is better.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a coating machine stirring paddle with low stirring equivalent, comprising a conical barrel and a drum, the conical barrel being fixed to both ends of the drum, a drum mesh being fixed to the inner side wall of the drum, at least two groups of main stirring paddle assemblies being evenly arranged on the drum mesh, the main stirring paddle assemblies comprising a first main stirring paddle and a second main stirring paddle being symmetrically arranged about the central axis of the drum mesh, the first main stirring paddle and the second main stirring paddle being symmetrically arranged in an eight-shaped shape, a plurality of first auxiliary stirring paddles being arranged on the drum mesh parallel to the first main stirring paddle, a plurality of second auxiliary stirring paddles being arranged on the drum mesh parallel to the second main stirring paddle, both the first main stirring paddle and the second main stirring paddle being composed of a rod portion and a blade portion, and the blade portion being fixed to the end of the rod portion, the blade portion being an arc-shaped structure, and both the first auxiliary stirring paddle and the second auxiliary stirring paddle being triangular prism-shaped.

[0006] As a preferred technical solution of the present invention, the corresponding nearest point distance between the first main stirring paddle and the second main stirring paddle is X, and the value of X is 120mm-150mm; the distance between the first auxiliary stirring paddle and the first main stirring paddle and the distance between the two first auxiliary stirring paddles are both Y, the distance between the second auxiliary stirring paddle and the second main stirring paddle and the distance between the two second auxiliary stirring paddles are both Y, and the value of Y is (X-20mm)-X.

[0007] As a preferred technical solution of the present invention, the height of the first main stirring paddle and the second main stirring paddle is H, which is less than the sheet bed height formed by the minimum loading amount of the material in the drum mesh. The sheet bed height is the distance between the upper end surface of the material and the lowest point of the bottom of the drum mesh when the material is accumulated at the bottom of the drum mesh, and the value of H is ≥25mm.

[0008] As a preferred technical solution of the present invention, the drum mesh includes two parallel open edges, both ends of the first main stirring paddle and the second main stirring paddle extend to the two open edges respectively, and one end of the first auxiliary stirring paddle and the second auxiliary stirring paddle extends to one of the open edges.

[0009] As a preferred technical solution of the present invention, the angle value of the smaller angle formed by the first main stirring paddle, the second main stirring paddle and the edge of the opening is A, and the value of A is 30°-40°.

[0010] As a preferred technical solution of the present invention, the length of the first stirring paddle and the second stirring paddle is Z, and the value of Z is ≥100 mm.

[0011] As an optimal technical solution of the present invention, the main stirring paddle assembly is connected to the inner wall of the drum mesh by welding or by a fixing part, the fixing part is matched with the end surface connected to the inner wall of the drum mesh, and a threaded connection hole is provided on the fixing part.

[0012] As a preferred technical solution of the present invention, one end of the rod is cylindrical, and the center of the rod is at an angle α to the extension line of the end of the blade, and the angle α is ≥90°.

[0013] The invention discloses an operating process of a coating machine with a stirring paddle having a low stirring equivalent, comprising the following operating steps: S1: adding plain tablet cores into the coating machine drum and conical barrel through the inlet and outlet; S2: the tablet cores tumble under the drive of the drum to form a tablet bed; S3: pouring out from the drum after a specified time.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In this device, multiple groups of first main stirring paddles and second main stirring paddles symmetrically arranged in an eight-shaped shape are arranged on the inner wall of the drum mesh plate, and then combined with several first auxiliary stirring paddles and second auxiliary stirring paddles symmetrically arranged in an eight-shaped shape. The special stirring paddle layout structure makes the material more evenly stirred and mixed in the drum mesh plate. At the same time, the height of the main stirring paddle is set to be slightly smaller than the height of the sheet bed formed by the minimum loading amount of the material in the drum mesh plate, so that effective mixing and stirring can still be guaranteed when the material loading amount in the drum mesh plate is the lowest, which is more practical.

[0016] 2. In the present invention, the material (tablet core) generates different curved cross motions on both sides during movement, thereby achieving rapid axial mixing. At the same time, during the curved mixing movement, any surface of the material will be quickly sprayed (coated), so that the tablet core coating effect can be optimized and uniform. Since the cone angle of the paddle part is reduced, the width of the drum is increased while the volume remains unchanged, thereby increasing the ventilation area of the drum and improving the drying speed of the coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic top view of the structure of the drum of the present invention;

[0019] Figure 3 This is a structural schematic diagram of the unfolded drum of the present invention;

[0020] Figure 4 Schematic diagram of loading materials into the drum mesh plate of the present invention;

[0021] Figure 5 for Figure 4 The structural view at CC;

[0022] Figure 6 Schematic diagram of the structure of the rod and blade parts of the present invention;

[0023] Figure 7 for Figure 6 Side view of

[0024] Figure 8 Schematic diagram of the structure of the second stirring paddle of the present invention.

[0025] Among them: 1. Drum mesh; 2. Main stirring paddle assembly; 21. First main stirring paddle; 22. Second main stirring paddle; 23. Rod; 24. Blade; 3. First auxiliary stirring paddle; 4. Second auxiliary stirring paddle; 5. Tablet bed height; 6. Opening edge; 7. Fixing part; 8. Conical barrel; 9. Drum. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, purpose and efficacy of the present invention easy to understand, the present invention is further described below in conjunction with specific examples, but the following examples are only preferred embodiments of the present invention, not all. Based on the examples in the embodiments, other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following examples, unless otherwise specified, can be obtained from commercial channels.

[0027] Example:

[0028] like Figure 1-8 As shown, the present invention provides a stirring paddle arrangement structure suitable for low stirring equivalent of a coating machine, comprising a conical barrel 8 and a drum 9, wherein the conical barrel 8 is fixed to both ends of the drum 9, and comprises a drum mesh plate 1, and at least two groups of main stirring paddle assemblies 2 are evenly arranged on the drum mesh plate 1, and the main stirring paddle assembly 2 comprises a first main stirring paddle 21 and a second main stirring paddle 22 symmetrically arranged with respect to the central axis of the drum mesh plate 1, the first main stirring paddle 21 and the second main stirring paddle 22 are symmetrically arranged in an eight-shaped shape, and the distance between the closest points corresponding to the two is X, and two groups of main stirring paddle assemblies 2 are provided with a total of four main stirring paddles, wherein the value of X is 120mm-150mm, which can allow the material to be stirred along the main stirring paddle. The stirring paddles are fully stirred and mixed. The first main stirring paddle 21 and the second main stirring paddle 22 are composed of a rod 23 and a blade portion 24, and the blade portion 24 is fixed to the end of the rod 23. The blade portion 24 is an arc-shaped structure. The first auxiliary stirring paddle 3 and the second auxiliary stirring paddle 4 are both triangular prism-shaped; the material (tablet core) produces different two-side curved cross-motions during movement to achieve rapid axial mixing. At the same time, during the curved mixing movement of the material, any surface of it will be quickly sprayed (coated) to achieve the best and uniform coating effect of the tablet core. Since the cone angle of the blade portion 24 is reduced, the width of the drum is increased while the volume remains unchanged, the ventilation area of the drum is increased, and the drying speed of the coating is improved.

[0029] In other embodiments, a plurality of first auxiliary stirring paddles 3 are arranged on the drum mesh plate 1 in parallel with the first main stirring paddle 21, and the spacing between the first auxiliary stirring paddle 3 and the first main stirring paddle 21 and the spacing between the two first auxiliary stirring paddles 3 are both Y, and a plurality of second auxiliary stirring paddles 4 are arranged on the drum mesh plate 1 in parallel with the second main stirring paddle 22, and the spacing between the second auxiliary stirring paddle 4 and the second main stirring paddle 22 and the spacing between the two second auxiliary stirring paddles 4 are both Y, wherein the value of Y is (X-20mm)-X, which can further allow the materials to be evenly stirred and mixed.

[0030] The height of the first main stirring paddle 21 and the second main stirring paddle 22 is H, which is less than the sheet bed height 5 formed by the minimum loading amount of the material in the drum mesh plate 1, and is generally slightly less than the sheet bed height 5. The sheet bed height 5 is the distance between the upper end surface of the material and the lowest point of the bottom of the drum mesh plate 1 when the material is accumulated at the bottom of the drum mesh plate 1, wherein the value of H is ≥25mm; this setting ensures effective mixing and stirring when the material loading amount in the drum mesh plate 1 is the lowest, and is more practical.

[0031] The drum mesh plate 1 includes two parallel open edges 6, both ends of the first main stirring paddle 21 and the second main stirring paddle 22 extend to the two open edges 6 respectively, and one end of the first auxiliary stirring paddle 3 and the second auxiliary stirring paddle 4 extends to one of the open edges 6. The main stirring paddle needs to be of sufficient length as the main stirring tool, and the auxiliary stirring paddles on both sides of the main stirring paddle become shorter in sequence. If the length is too short, the stirring effect is poor and it does not meet the cost-effectiveness. Therefore, the length of the first auxiliary stirring paddle 3 and the second auxiliary stirring paddle 4 is Z, and the value of Z is ≥100 mm. The overall structure is simple and the layout is reasonable.

[0032] In other embodiments, the angle value of the smaller angle formed by the first main stirring paddle 21, the second main stirring paddle 22 and the opening edge 6 is A, and the value of A is 30°-40°. The inclination of the stirring paddle within this angle range is conducive to uniform stirring and mixing of the material along its surface; the main stirring paddle assembly 2 is connected to the inner wall of the drum mesh plate 1 by welding or connected to the inner wall of the drum mesh plate 1 by a fixing member 7, and the connecting end surface of the fixing member 7 and the inner wall of the drum mesh plate 1 are matched and ground, that is, the connecting end surface is ground into an arc surface adapted to the inner wall of the drum mesh plate 1, and a threaded connection hole is provided on the fixing member 7 for easy disassembly and assembly, and the first auxiliary stirring paddle 3 and the second auxiliary stirring paddle 4 can also adopt the same connection method.

[0033] The present invention also provides an operating process of a coating machine stirring paddle with low stirring equivalent, comprising the following operating steps:

[0034] S1: Add the core tablets into the coating machine drum 9 and conical barrel 8 through the inlet and outlet;

[0035] S2: The tablet core rolls under the drive of the roller to form a tablet bed;

[0036] S3: After a specified time, pour out from the drum.

[0037] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0038] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A coating machine stirring paddle with low stirring equivalent, comprising a conical barrel (8) and a roller (9), wherein the conical barrel (8) is fixed to both ends of the roller (9), characterized in that: A roller mesh plate (1) is fixed to the inner side wall of the roller (9), and at least two groups of main stirring paddle assemblies (2) are evenly arranged on the roller mesh plate (1). The main stirring paddle assembly (2) includes a first main stirring paddle (21) and a second main stirring paddle (22) symmetrically arranged about the central axis of the roller mesh plate (1), and the first main stirring paddle (21) and the second main stirring paddle (22) are symmetrically arranged in an eight-shaped shape. A plurality of first auxiliary stirring paddles (3) are arranged on the roller mesh plate (1) in parallel with the first main stirring paddle (21), and a plurality of second auxiliary stirring paddles (4) are arranged on the roller mesh plate (1) in parallel with the second main stirring paddle (22). The first main stirring paddle (21) and the second main stirring paddle (22) are both composed of a rod portion (23) and a blade portion (24), and the blade portion (24) is fixed to the end of the rod portion (23). The blade portion (24) is an arc-shaped structure. The first auxiliary stirring paddle (3) and the second auxiliary stirring paddle (4) are both triangular prism-shaped.

2. The coating machine stirring paddle with low stirring equivalent according to claim 1, characterized in that: The corresponding closest point spacing between the first main stirring paddle (21) and the second main stirring paddle (22) is X, and the value of X is 120 mm-150 mm; the spacing between the first auxiliary stirring paddle (3) and the first main stirring paddle (21) and the spacing between the two first auxiliary stirring paddles (3) are both Y, and the spacing between the second auxiliary stirring paddle (4) and the second main stirring paddle (22) and the spacing between the two second auxiliary stirring paddles (4) are both Y, and the value of Y is (X-20) mm-X.

3. The coating machine stirring paddle with low stirring equivalent according to claim 1, characterized in that: The height of the first main stirring paddle (21) and the second main stirring paddle (22) is H, which is less than the sheet bed height (5) formed by the minimum loading amount of the material in the roller mesh plate (1). The sheet bed height (5) is the distance between the upper end surface of the material and the lowest point of the bottom of the roller mesh plate (1) when the material is accumulated at the bottom of the roller mesh plate (1). The value of H is ≥25 mm.

4. The coating machine stirring paddle with low stirring equivalent according to claim 1, characterized in that: The roller mesh plate (1) includes two parallel open edges (6), both ends of the first main stirring paddle (21) and both ends of the second main stirring paddle (22) extend to the two open edges (6), and both ends of the first auxiliary stirring paddle (3) and the second auxiliary stirring paddle (4) extend to one of the open edges (6).

5. The coating machine stirring paddle with low stirring equivalent according to claim 1, characterized in that: The angle formed by the first main stirring paddle (21), the second main stirring paddle (22) and the opening edge (6) is A, and the value of A is 30°-40°.

6. The coating machine stirring paddle with low stirring equivalent according to claim 1, characterized in that: The length of the first stirring paddle (3) and the second stirring paddle (4) is Z, and the value of Z is ≥100 mm.

7. The coating machine stirring paddle with low stirring equivalent according to claim 1, characterized in that: The main stirring paddle assembly (2) is connected to the inner wall of the drum mesh plate (1) by welding or by a fixing member (7), the fixing member (7) and the inner wall of the drum mesh plate (1) are connected by grinding, and a threaded connection hole is provided on the fixing member (7).

8. The coating machine stirring paddle with low stirring equivalent according to claim 1, characterized in that: One end of the rod portion (23) is cylindrical, and the center of the rod portion (23) is at an intersection angle α with the extension line of the end of the blade portion (24), and the angle α is ≥90°.

9. An operating process of a coating machine stirring paddle with low stirring equivalent, applied to a coating machine stirring paddle with low stirring equivalent according to any one of claims 1 to 8, characterized in that: The process comprises the following steps: S1: adding the core tablets into the drum (9) and the conical barrel (8) of the coating machine through the inlet and outlet ports; S2: the core tablets are rolled by the drum to form a tablet bed; S3: after a specified time, the core tablets are poured out from the drum.

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